In a shooting contest, each participant only shoots one times. There a

In a shooting contest, each participant only shoots one times. There are 3 participants A, B and C. The probability that A, B and C hit the target are 0.7, 0.6 and 0.5 respectively. What is the probability that there is at least one participant who hits the target? A. 0.45 B. 0.75 C. 0.79 D. (…)